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CVE-2026-48558CRITICAL · 10.0TrackedCISA KEV
SimpleHelp · SimpleHelp
SimpleHelp contains an authentication bypass vulnerability in the OIDC authentication flow. When OIDC authentication is configured, identity tokens submitted during login are accepted without verifying their cryptographic signature. In a vulnerable configuration, a remote, unauthenticated attacker can submit a forged token containing arbitrary identity claims to obtain a fully authenticated technician session. In some configurations, this may also allow bypass of multi-factor authentication.
Disclosed
2026-06-12
27 days ago
Status
no honeypot capture yet
on CISA KEV — watching
7-day events
0
across 0 distinct IPs
7-day spread
0 ASN · 0 cty
0 active days
Top ASNs
No events captured yet.
Top countries
No events captured yet.
References
- https://simple-help.com/security/simplehelp-security-update-2026-05
- https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk
- https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk
- https://nvd.nist.gov/vuln/detail/CVE-2026-48558